Re: [aspectj-users] Use of introduced attributes/methods in around advic

[Ramnivas Laddad <ramnivas@xxxxxxxxx>]

Change your around() advice as follows:

void around(): execution(* Entity+.set*(..)) && this(entity) {
    entity.isDirty = true;
    proceed();
}

-Ramnivas


--- Ricardo Giacomin <ricardo.giacomin@xxxxxxxxxx> wrote:
> The compiler message i get for the excerpt below is "isDirty cannot
> be
> resolved or is not a field".
> 
> public aspect DirtinessControlAspect
> {
>    interface Entity {}
>    declare parents: uol.job.store.* implements Entity;
> 
>    private boolean Entity.isDirty = false;
>    void around(): execution(* Entity+.set*(..))
>    {
>       this.isDirty = true;
>       proceed();
>    }
> }
> 
> Any hints?
> 
> []s,
> Ricardo.
> 
> ----- Original Message -----
> From: "Shimon Rura" <shimon@xxxxxxxx>
> To: "Ricardo Giacomin" <ricardo.giacomin@xxxxxxxxxx>
> Cc: <aspectj-users@xxxxxxxxxxx>
> Sent: Monday, March 31, 2003 8:07 PM
> Subject: Re: [aspectj-users] Use of introduced attributes/methods in
> around
> advices
> 
> 
> > You should be able to do what you want to do.  Could you post the
> error
> > message the compiler gives you along with the introduction code?
> >
> > shimon.
> >
> > On Mon, Mar 31, 2003 at 07:25:57PM -0300, Ricardo Giacomin wrote:
> > > Hi all,
> > >
> > > Is it possible to use introduced attributes in around advices?
> For
> instance, suppose I have an aspect for keeping track of 'dirtiness'
> of db
> entities. The boolean isDirty attribute is introduced in my entity
> classes
> and I have an around() advice for all setters, which would mark this
> flag as
> true. The problem is that I get a compiler error saying that isDirty
> cannot
> be resolved or is not a field. If I keep isDirty as an aspect
> attribute, and
> not introduce it in the entity classes, there will be only one
> isDirty for
> all entities (which is not the intended behavior). What am I suppose
> to do?
> Define a perInstance aspect?
> > >
> > > Any help would be most appreciated.
> > >
> > > []s,
> > > Ricardo.
> 
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